There are two types of DOD plates commonly used in L99 Camaro's with automatic transmission. If your DOD plate has 4 raised surfaces (circled in image) you will need to replace it with this type (image left) before installing the 2010+ SLP Supercharger Kit (Part #: 92000A)

Removing the intake manifold assembly and visually inspecting the DOD plate is the only way to verify which plate type you have.